Description of oocyst: Oocyst shape: subspheroid;
number of walls: 2;
wall thickness: 1.7-1.9;
wall characteristics: outer, smooth, yellow, thinner than inner layer;
L x W: 19.5 x 15.2 (18-22 x 15.5-17);
L/W ratio: 1.3;
M: absent;
OR: absent;
PG: reported as absent (?).
Distinctive features of oocyst: the authors state, "a clear micropylar cap is visible on the wall of the oocyst,
but no ditinct micropyle is seen in any of the oocysts examined." However, they did not include a micropyle
cap in their line drawing, so our conclusion is that the PG was confused for a micropylar cap.

Materials deposited: None. Ahluwalia et al. (1979) said, "Holotype: Z.S.I. Registration No."
but did not give the number and Bandyopadhyay and Das Gupta (1984), who made tissue sections from an
infected host, did not deposit them anywhere.

Remarks: Ahluwalia et al. (1979) stated that, "stained sections exhibit
oocysts, macrogametocytes and microgametocytes inside coulmnar epithelial cells," but gave no drawings or
photomicrographs; however, Bandyopadhyay and Das Gupta (1984) described and measured the endogenous
stages from 1 S. m. soccatus they found in Darjeeling, West Bengal. The oocysts they described
from fecal material were quite similar to those first described by Ahluwalia et al. (1979): subspherical oocysts
were 19.6 x 18 (17-21 x 16-19.5) with a smooth, 2-layered wall ~1.2-1.5; outer layer thinner than inner
layer; OR absent, ovoid sporocysts were 10.2 x 6.8 (9-11 x 6-7.5) with a SB and a SR of scattered, fine
globules. Bandyopadhyay and Das Gupta (1984) repeated the same error of Ahluwalia et al. (1979), mistaking a PG
for a micropyle.